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CSC Digi/RecHit Validation

This study explores the impact of crosstalk in CSC detectors on RecHit resolution, providing insights on calibrations, gains, pedestal, noise, and more. The research by Rick Wilkinson highlights the non-random crosstalk effect and its implications on reconstruction accuracy.

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CSC Digi/RecHit Validation

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  1. CSC Digi/RecHit Validation Calibrations & Crosstalk

  2. Effects Fetched From Calibrations • Gains • Pedestal • Pedestal Width • Correlated Noise • Crosstalk Rick Wilkinson

  3. Crosstalk • CSC strips have capacitance • Crosstalk behaves like a differentiator circuit • 5-10% effect • proportional to slope Rick Wilkinson

  4. RecHit r-df Resolution • RMS resolution, in mm • CSCRecHit : doesn’t use calibrations • CSCRecHitB: uses calibrations • Crosstalk can double or triple resolution • Even though it’s a 5-10% effect! • Pulls the fit towards the second-highest strip Rick Wilkinson

  5. Conclusions • Validation done for Digis & RecHits under 140 and 150pre3, with and without calibrations database • Crosstalk has a surprisingly big effect on resolution • Even though it’s not a random effect! • Need to study • How to simulate it • How accurate and stable calibrations are • How to best correct for it in reconstruction Rick Wilkinson

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